Ruler - Scale Ruler4.7

Scale Ruler is the simple application to display the scale of various measurement units.
※ Warning:
- The accuracy of the scales cannot be guaranteed.
- Calibration and PPI values ​​will be reset when the model changes.
- Set the PPI value only when the model is undecided.
- When you change the PPI value, perform calibration after the change.
■How to use:

■Select mode
In UNLOCKED state, after choosing measurement unit, magnification ratio and reduced scale, the scale is displayed.

■Free mode
When dragging the screen at UNLOCK, you can set the scale in the range 1: 1 to 1: 100.
When you press and hold the scale value, the keyboard is displayed and you can enter the scale.

You can lock the scale on the ruler with a switch.
Sorry for the advertisement during unlocking.
After In-App Purchase, your ads will no longer be displayed.

Specification of Scale Ruler
- measure length
meter,inches

- magnification ratio
50% , 70.7% , 100% , 141% , 200%

- reduced scale
　for meter　
　　1:100 , 1:150 , 1:200 , 1:250 , 1:300 , 1:400 , 1:500 , 1:600

　for inch
　　1:1 , 1:1.5 , 1:2 , 1:2.5 , 1:3 , 1:4 , 1:5 , 1:6

　for inch(Architectural)
　　1:1 , 1:2 , 1:4 , 1:8 , 1:12 , 1:16 , 1:24 , 1:32 , 1:48 , 1:64
　　1:96 , 1:128 , 1:192 , 1:384

　for inch(Engineering)
1:120 , 1:240 , 1:360 , 1:480 , 1:600 , 1:720
1:800 , 1:960 , 1:1080

■ Settings
- Calibration
- PPI (pixels per inch) setting
- In-app purchase (ads not displayed)
- In-app purchase restoration
■ Calibration
Adjust the length of the ruler.
Use the correct ruler for adjustment.

"Calibration" button: Records the adjusted state and reflects the calibration result on the ruler.
"Reset" button: Returns the adjustment status to the specified value. It will not be recorded.
"Initialize" button: Returns the adjustment status to the specified value and reflects it on the ruler.
* Caution: The calibration value will be reset when the model changes.

■ PPI (pixels per inch) setting
If the model is undecided, check the PPI value of the model before setting the PPI value.
* Please set only when the model is undecided.

"OK" button: Record the entered PPI value and reflect it on the ruler display.
"Initialize" button: Returns the PPI value to the specified value and reflects it on the ruler.
* Caution: The PPI value will be reset when the model changes.

Version History Update for iPhone17e ,iPad Air 11-inch(M4),iPad Air 13-inch(M4). 4.7 Mar 19 Update for iPhoneAir ,iPhone17 ,iPhone 17 Pro ,iPhone 17 Pro Max. 4.6 10/17/2025 Update for iPhone 16e , iPad(10.9-inch)(A16) , iPad Air 11-inch (M3) , iPad Air 13-inch (M3) . 4.5 03/11/2025 Update for iPhone 16 , iPhone 16 Plus , iPhone 16 Pro , iPhone 16 Pro Max , iPad Pro(12.9-inch)(6rd generation) , iPad Air4(10.9-inch)(M2) , iPad Air4(12.9-inch)(M2) , iPad Pro(11-inch)(M4) , iPad Pro(13-inch)(M4) . 4.4 09/21/2024 Update for iPhone 15 , iPhone 15 Plus , iPhone 15 Pro , iPhone 15 Pro Max. 4.3 09/27/2023 Update for iPhone 14 , iPhone 14 Plus , iPhone 14 Pro , iPhone 14 Pro Max. 4.2 10/03/2022 Update for the iPad Air (10.9-inch) (5th generation) , iPhone SE (3rd generation). 4.1 03/18/2022 Add calibration function and In-App Purchase(Hide ads). 4.0 03/05/2022 Update for the iPad Pro (11-inch) (3rd generation) , iPad Pro (12.9-inch) (5th generation) , iPad mini (6th generation), iPhone 13 minii , iPhone 13 , iPhone 13 Pro,iPhone 13 Pro Max. 3.11 10/03/2021 Update for the iPad Air(4th generation) , iPad (8th generation),iPhone 12 minii , iPhone 12 , iPhone 12 Pro , iPhone 12 Pro Max. 3.10 11/18/2020 Update for the iPad Pro(11 inch)(2rd generation) , iPad Pro(12.9inch)(4rd generation),iPhone SE(2rd generation). 3.9 04/25/2020 Fixed picker bug again. 3.8.2 02/27/2020 Fixed picker bug. 3.8.1 12/28/2019 Update for the iPad(7th generation).
Support for dark mode. 3.8 10/02/2019 Update for the iPhone 11,iPhone 11 Pro,iPhone 11 Pro Max.
The top ruler is not displayed while unlocked.
To comply with AdMob policy. 3.7 09/25/2019 Update for the iPad Air(3rd generation),iPad mini(5th generation). 3.6 06/05/2019 Update for the iPhone XR,iPad Pro(11 inch),iPad Pro(12.9 inch)(3rd generation). 3.5 11/08/2018 Update for the iPhone XS,iPhone XS Max. 3.4 09/25/2018 Update for the iPad (6th generation). 3.3 04/02/2018 Update for the iPhoneX.
Changed the position of the ad to the center. 3.2 11/03/2017 Update for the iPhone 8 and iPhone 8 Plus. 3.1 09/23/2017 Fix not to rotate screen. 3.0.1 09/15/2017 A ruler is added to the top of the screen.
In free mode, I made it possible to input the scale.
Press and hold the scale value to display the keyboard. 3.0 08/11/2017 Update for the iPad Pro(10.5 inch). 2.8 06/21/2017 Update for the iPad (5th generation). 2.7 03/23/2017